#coding=utf-8
from flask import Flask,jsonify,json
from flask import render_template
from flask import url_for,request
from werkzeug.utils import secure_filename

app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello World'

@app.route('/user/<name>')
def username(name):
    # 通过数据库查询
    # 通过数据库修改
    # 其他业务操作
    # 修改相关信息，并且反馈到前台
    if(name == "张三"):
        name = "真是张三"
    else:
        name = "不是张三,而是" + name

    return '<h1>hello,%s</h1>' % name

@app.route('/user')
def user():
    user = [['张三','男','重庆'],
            ['李四','女','四川']]
    return render_template("user.html",list=user)

@app.route('/url/')
def redirect_to_url():
    return url_for('post_show',post_id = 666)

@app.route('/post/<int:post_id>')
def post_show(post_id):
    return 'Post ID : %d' % post_id

@app.route('/getJson')
def getJson():
    data = {
        "name":"张三",
        "sex":"男",
        "age":20,
        "address":"重庆市"
    }
    # 将数据json，这个数据可以是任何的
    return jsonify(data)

# Get传参
# Post传参
@app.route('/login',methods = ['GET','POST','PUT'])
def login():
    if request.method == 'GET':
        print("当前请求方法是GET")
        username = request.args.get("username")
        address = request.values.get("address")

        data = {
            "username" : username,
            "address" : address
        }
        print(data)
        return jsonify(data)

    elif request.method == 'POST':
        print("当前请求方法是POST")
        username = request.args.get("username")
        address = request.values.get("address")

        data = {
            "username": username,
            "address": address
        }
        print(data)
        return jsonify(data)

    elif request.method == 'PUT':
        print("当前请求方法是PUT")
        username = request.args.get("username")
        address = request.values.get("address")

        data = {
            "username": username,
            "address": address
        }

        print(data)
        return jsonify(data)

# 传递json
@app.route('/passJson',methods = ['POST'])
def passJson():
    data = json.loads(request.get_data(as_text = True))
    # 写业务程序
    return jsonify(data)

# 上传文件
# 步骤一，创建路由，创一个到静态文件的路由
@app.route('/upload/index')
def toUploadPage():
    return render_template('upload2.html')
# 步骤二，静态文件中有文件上传功能，点击该功能上传文件
@app.route('/upload',methods=['POST'])
def upload():
    if request.method == 'POST':
        file = request.files['file']
        print(request.files)

        file.save(secure_filename(file.filename))

        # 可以做其他的业务，比如人脸识别等等
        return "文件上传成功！"
    else:
        return render_template('upload2.html')
# 访问数据库

if __name__ == '__main__':
    app.debug = True
    app.run()